发明名称 |
Scanning system for decoding two-dimensional barcode symbologies with a one-dimensional general purpose scanner |
摘要 |
A method and apparatus for decoding two-dimensional barcode symbols from a data stream generated by scanning a two-dimensional barcode with a one-dimensional scanner. A decoding process according to one embodiment of the invention involves coupling the one-dimensional scanner to a serial or other port of a host computer in order to provide a data stream to a software decoder resident in the host computer. The software decoder performs a series of iterative steps in which the data stream is sampled at regular intervals to convert the data stream to a series of elements (e.g., bars and spaces). Barcode symbol data characters are then derived from the elements. A symbol matrix is next constructed, the matrix being representative of the two-dimensional barcode symbol.
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申请公布号 |
US6446868(B1) |
申请公布日期 |
2002.09.10 |
申请号 |
US19980198125 |
申请日期 |
1998.11.23 |
申请人 |
INFORMATICS, INC. |
发明人 |
ROBERTSON BRENT G.;LEE GLENN W.;COLBURN ROGER J. |
分类号 |
G06K7/14;(IPC1-7):G06K7/10 |
主分类号 |
G06K7/14 |
代理机构 |
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地址 |
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